Raj Mathew (Sanjay Kapoor) has a problem in his life. By profession a film star, he loves his wife, but she is acutely suspicious of him. His marriage is on the rocks. Madhulika (Aditi Gowatrikar), his wife has a problem, she loves Raj but cannot control the insecurity of losing him to another woman.
Her love is self destructive. Preity Sardesai (Raveena Tandon) a choreographer turned director has a problem of being labelled the other women, whereas it is not so. Though she is in love with Raj, she keeps her distance and knows that what cannot be must not be. When Om (Arbaaz Khan) enters the lives of these people, he comes not only with his problem but also a solution which is murder and a murder is committed.
Why does a man kill? Is it hate or is it really an extreme form of love - the extreme desire to be loved that makes him/her a murderer. The answer lies in Soch, after all it's a thought which kills.